From 88d134b3a9d466b7381e9f019aceec620fefd487 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Strohh=C3=A4cker?=
 <c2woody@users.sourceforge.net>
Date: Sat, 14 Mar 2009 16:10:00 +0000
Subject: [PATCH] implement temp file creation function when used without a
 path (see sf bug #2665465)

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3317
---
 src/dos/dos.cpp       |  8 ++++----
 src/dos/dos_files.cpp | 12 +++++++-----
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/src/dos/dos.cpp b/src/dos/dos.cpp
index e9ae9c3b..cd3ff0eb 100644
--- a/src/dos/dos.cpp
+++ b/src/dos/dos.cpp
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2002-2008  The DOSBox Team
+ *  Copyright (C) 2002-2009  The DOSBox Team
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -16,7 +16,7 @@
  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-/* $Id: dos.cpp,v 1.115 2009-01-14 22:16:00 qbix79 Exp $ */
+/* $Id: dos.cpp,v 1.116 2009-03-14 16:10:00 c2woody Exp $ */
 
 #include <stdlib.h>
 #include <string.h>
@@ -67,8 +67,8 @@ static Bitu DOS_21Handler(void) {
 		psp.SetStack(RealMake(SegValue(ss),reg_sp-18));
 	}
 
-	char name1[DOSNAMEBUF+1];
-	char name2[DOSNAMEBUF+1];
+	char name1[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
+	char name2[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII];
 	switch (reg_ah) {
 	case 0x01:		/* Read character from STDIN, with echo */
 		{	
diff --git a/src/dos/dos_files.cpp b/src/dos/dos_files.cpp
index 0f4da6a3..4d80ab59 100644
--- a/src/dos/dos_files.cpp
+++ b/src/dos/dos_files.cpp
@@ -16,7 +16,7 @@
  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-/* $Id: dos_files.cpp,v 1.105 2009-01-24 16:22:55 c2woody Exp $ */
+/* $Id: dos_files.cpp,v 1.106 2009-03-14 16:10:00 c2woody Exp $ */
 
 #include <string.h>
 #include <stdlib.h>
@@ -698,19 +698,21 @@ bool DOS_ForceDuplicateEntry(Bit16u entry,Bit16u newentry) {
 }
 
 
-
 bool DOS_CreateTempFile(char * const name,Bit16u * entry) {
-	/* First add random crap to the end of the name and try to open */
 	size_t namelen=strlen(name);
 	char * tempname=name+namelen;
-	if (namelen==0) E_Exit("DOS:Invalid call to CreateTempFile");
-	else {
+	if (namelen==0) {
+		// temp file created in root directory
+		tempname[0]='\\';
+		tempname++;
+	} else {
 		if ((name[namelen-1]!='\\') && (name[namelen-1]!='/')) {
 			tempname[0]='\\';
 			tempname++;
 		}
 	}
 	dos.errorcode=0;
+	/* add random crap to the end of the name and try to open */
 	do {
 		Bit32u i;
 		for (i=0;i<8;i++) {